@curie is one of the few orca sized accounts that have been curating good content from the beginning I think. And from what I have seen @curie has been doing an excellent job. It doesn't have any whales delegating to it though which is a shame.
I believe @curie also has curators that get paid in STEEM by @curie if they find posts that meet @curie's criteria of a good post. It's an interesting concept.